Using 6000 lb Hubs on 7000 lb Axle

Question

Question:

I would like to know if this hub will fit a 7000 lb axle Reliable that has the same specs as their 6000 lb axle legnth, tube size, OAL, both state they use the 1 3/4 inner bearing and 1 1/4 outer bearing. The reason I ask is I already have the 7000 lb axle but would rather use 6 on 5.5 wheels 15 instead of having to use 16inch as I plan to put 12inch disc brakes on the axle. I saw where you can put the 7000 lb hubs on the 5200 and 6000 axles so I figured the 6000 lb hubs should fit on the 7000lb axle. The 7000lb axle is #124442. The 6000lb axle is #124440. I do not plan to build a trailer capable of hauling 7000 lb but got a good deal on the axle. Thank you for any information you can give me Thank you for any information you can supply.

asked by: Raven J

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Expert Reply:

As long as bearings on the hub you choose are compatible with the existing spindle on your axle, you can indeed change to hubs that have the desired wheel bolt pattern. The first step would be to confirm the dimensions of your spindles using an accurate measuring device like a digital caliper. Using a ruler would not provide a measurement that is precise enough. I have provided a diagram that will will show you where to take the measurements. The # 8-213-5UC1 hub would be compatible with the bearing inside diameter you mentioned.

Remember, your axle weight rating will be determined by the capacity of its lowest rated component. Using a 6000 lb capacity hub on your 7000 lb axle will not be a problem, but doing so will lower the axle capacity.

The reason we do not recommend doing this is that although you will know the axle capacity has been lowered, in the event that you sell the trailer in the future, the lowered capacity will not be immediately evident to the new owner. Overloading the hubs can cause all sorts of evil things to happen, up to and including loss of the wheel while the trailer is in motion.

expert reply by: Mike L

0

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Answer 1

The difference between the 10-10 grease seals, #RG06-090, and the 10-36 grease seals, #RG06-070, is their inner diameter. The 10-10 grease seals fit older spindles with a seal journal (see photo) diameter of 2.125 inches. The 10-36 grease seals fit…

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Answer 2

Although both the #LM67048 and the #14125A bearings might have the same inner diameter of 1.25 inches, they aren't interchangeable. Both bearings are compatible with a different race or bearing cone. The races have a different outside diameter,…

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Answer 3

We have just what you need. The correct replacement grease seal you need is the part #GS-2125DL which is the proper replacement for your TMC21333VB.

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Answer 4

There are a lot of great solutions to your problem, but to upgrade your trailer axles from 6,000 lbs to 7,000 lbs, you need to replace your axles entirely. Adding higher capacity hubs alone won't change the weight capacity of your axles. Note…

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Answer 5

The biggest difference between the 6,000 lbs Dexter Trailer Brake Assembly part #23-106 for right hand and part #23-105 for left hand and the 7,000 lbs Dexter Trailer Brake Assembly part #23-181 for right hand and part #23-180 for left hand is the…

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Answer 6

As you may have already found, 5200 lb, 6000 lb and 7000 lb axles can all use the same components including inner/outer bearings, hubs and brakes. Here are some other things they share in common: Dexter 5200 lb Regular Duty Axle - 0.180 inch tube…

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Answer 7

Dimensionally they'll fit and they will operate but you don't actually get a stronger braking action. Instead the brakes will be harder to setup and get the correct amount of braking action. The heavier duty assemblies have a magnet…

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Answer 8

First, a 5,200 pound axle is a de-rated 6,000 pound axle so they take many of the same parts. Some 7,000 pound axles also take the same size parts. The difference is the size or ability of the magnets. Sometimes you will see the same type of magnet…

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Answer 9

Electric drum brake assemblies for 6k and 7k axles both use the same 5 bolt mounting pattern. The 7k brakes will have a stronger magnet and will provide more braking. If used on a 6k axle a 7k brake assembly can be too aggressive but it could be…

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Answer 10

No, the #14125A bearing has different applications than a #15123 bearing. The outer diameters are different. Both are readily available bearings. If you have a 15123 bearing then you would need that same bearing as a replacement. If you can provide…

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Answer 11

The short answer is Yes, bearing #15123 is slightly larger and stronger than #LM67048 and they use different races which means they are not interchangeable. Bearing 15123 uses race #15245 which has an outer diameter of 2.441 inches and bearing…

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Answer 12

Yes, axle spread and wheel base by definition are the same measurements. You will measure from the center of one axle to the center of the 2nd axle to determine what you axle spread is. This may be difficult as some wheels and covers will make this…

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Using 6000 lb Hubs on 7000 lb Axle

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